Print some extra useful information

agb-addr2line/src/main.rs

@@ -48,7 +48,7 @@ fn main() -> anyhow::Result<()> {
 
     let ctx = addr2line::Context::new(&object)?;
 
-    for (i, address) in gwilym_encoding::decode(&cli.dump).into_iter().enumerate() {
+    for (i, address) in gwilym_encoding::decode(&cli.dump)?.into_iter().enumerate() {
         print_address(&ctx, i, address.into(), modification_time)?;
     }
 
@@ -183,7 +183,7 @@ fn is_interesting_function(function_name: &str, path: &str) -> bool {
 mod gwilym_encoding {
     use std::sync::OnceLock;
 
-    const ALPHABET: &[u8] = b"-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz";
+    const ALPHABET: &[u8] = b"0123456789=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz";
 
     // pub fn encode_16(input: u16) -> [u8; 3] {
     //     let input = input as usize;
@@ -207,7 +207,15 @@ mod gwilym_encoding {
     //     ]
     // }
 
-    pub fn decode(input: &str) -> Vec<u32> {
+    pub fn decode(input: &str) -> anyhow::Result<Vec<u32>> {
+        let Some((input, version)) = input.rsplit_once('v') else {
+            anyhow::bail!("Does not contain version");
+        };
+
+        if version != "1" {
+            anyhow::bail!("Only version 1 is supported");
+        }
+
         let mut result = vec![];
 
         let mut previous_value = None;
@@ -224,7 +232,7 @@ mod gwilym_encoding {
             }
         }
 
-        result
+        Ok(result)
     }
 
     fn decode_chunk(chunk: &[u8]) -> u32 {

agb/fnt/OFL.txt

@@ -0,0 +1,94 @@
+Copyright (c) 2021, TakWolf (https://takwolf.com),
+with Reserved Font Name 'Ark Pixel'.
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://openfontlicense.org
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

agb/src/backtrace.rs

@@ -102,12 +102,12 @@ impl core::fmt::Display for Frames {
             }
         }
 
-        Ok(())
+        write!(f, "v1")
     }
 }
 
 mod gwilym_encoding {
-    const ALPHABET: &[u8] = b"-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz";
+    const ALPHABET: &[u8] = b"0123456789=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz";
 
     pub fn encode_16(input: u16) -> [u8; 3] {
         let input = input as usize;

agb/src/panics_render.rs

@@ -1,14 +1,16 @@
-use core::panic::PanicInfo;
+use core::{fmt::Write, panic::PanicInfo};
 
 use alloc::{format, vec};
 
 use crate::{
     backtrace,
-    display::{busy_wait_for_vblank, HEIGHT, WIDTH},
+    display::{bitmap3::Bitmap3, busy_wait_for_vblank, HEIGHT, WIDTH},
     dma::dma3_exclusive,
     interrupt, mgba, syscall,
 };
 
+mod text;
+
 pub fn render_backtrace(trace: &backtrace::Frames, info: &PanicInfo) -> ! {
     interrupt::free(|_cs| {
         dma3_exclusive(|| {
@@ -16,11 +18,20 @@ pub fn render_backtrace(trace: &backtrace::Frames, info: &PanicInfo) -> ! {
             let mut gba = unsafe { crate::Gba::new_in_entry() };
 
             gba.dma.dma().dma3.disable();
+            let mut gfx = gba.display.video.bitmap3();
 
-            let qrcode_string_data = format!("https://agbrs.dev/crash#v1-{trace}");
+            let qrcode_string_data = format!("https://agbrs.dev/crash#{trace}");
             crate::println!("Stack trace: {qrcode_string_data}");
 
-            draw_qr_code(&mut gba, &qrcode_string_data);
+            let location = draw_qr_code(&mut gfx, &qrcode_string_data);
+
+            let mut trace_text_render =
+                text::BitmapTextRender::new(&mut gfx, (location, 8).into(), 0x0000);
+            let _ = write!(&mut trace_text_render, "https://agbrs.dev/crash\n{trace}");
+
+            let mut panic_text_render =
+                text::BitmapTextRender::new(&mut gfx, (8, location).into(), 0x0000);
+            let _ = write!(&mut panic_text_render, "{info}");
 
             busy_wait_for_vblank();
 
@@ -35,9 +46,8 @@ pub fn render_backtrace(trace: &backtrace::Frames, info: &PanicInfo) -> ! {
     })
 }
 
-fn draw_qr_code(gba: &mut crate::Gba, qrcode_string_data: &str) {
-    let mut gfx = gba.display.video.bitmap3();
-
+/// Returns the width / height of the QR code + padding in pixels
+fn draw_qr_code(gfx: &mut Bitmap3<'_>, qrcode_string_data: &str) -> i32 {
     const MAX_VERSION: qrcodegen_no_heap::Version = qrcodegen_no_heap::Version::new(6);
 
     let mut temp_buffer = vec![0; MAX_VERSION.buffer_len()];
@@ -50,13 +60,13 @@ fn draw_qr_code(gba: &mut crate::Gba, qrcode_string_data: &str) {
         qrcodegen_no_heap::QrCodeEcc::Medium,
         qrcodegen_no_heap::Version::MIN,
         MAX_VERSION,
-        Some(qrcodegen_no_heap::Mask::new(0)),
+        None,
         true,
     ) {
         Ok(qr_code) => qr_code,
         Err(e) => {
             crate::println!("Error generating qr code: {e:?}");
-            return;
+            return 8;
         }
     };
 
@@ -70,4 +80,6 @@ fn draw_qr_code(gba: &mut crate::Gba, qrcode_string_data: &str) {
             gfx.draw_point(x, y, colour);
         }
     }
+
+    qr_code.size() * 2 + 8 * 2
 }

agb/src/panics_render/text.rs

@@ -0,0 +1,97 @@
+use core::fmt::Write;
+
+use crate::{
+    display::{bitmap3::Bitmap3, Font, HEIGHT, WIDTH},
+    fixnum::Vector2D,
+    include_font,
+};
+
+static FONT: Font = include_font!("fnt/ark-pixel-10px-proportional-latin.ttf", 10);
+
+pub struct BitmapTextRender<'bitmap, 'gba> {
+    head_position: Vector2D<i32>,
+    start_x: i32,
+    bitmap: &'bitmap mut Bitmap3<'gba>,
+    colour: u16,
+    previous_char: Option<char>,
+}
+
+impl<'bitmap, 'gba> BitmapTextRender<'bitmap, 'gba> {
+    pub fn new(
+        bitmap: &'bitmap mut Bitmap3<'gba>,
+        position: Vector2D<i32>,
+        start_colour: u16,
+    ) -> Self {
+        Self {
+            head_position: position,
+            start_x: position.x,
+            bitmap,
+            colour: start_colour,
+            previous_char: None,
+        }
+    }
+
+    fn render_letter(&mut self, c: char) {
+        let letter = FONT.letter(c);
+
+        self.head_position.x += letter.xmin as i32
+            + self
+                .previous_char
+                .take()
+                .map_or(0, |c| letter.kerning_amount(c));
+        self.previous_char = Some(c);
+
+        if self.head_position.x + letter.width as i32 >= WIDTH {
+            self.newline();
+        }
+
+        if self.head_position.y + letter.height as i32 >= HEIGHT {
+            return;
+        }
+
+        let y_position_start =
+            self.head_position.y + FONT.ascent() - letter.height as i32 - letter.ymin as i32;
+
+        for y in 0..letter.height as usize {
+            for x in 0..letter.width as usize {
+                let rendered = letter.bit_absolute(x, y);
+                if rendered {
+                    self.bitmap.draw_point(
+                        x as i32 + self.head_position.x,
+                        y as i32 + y_position_start,
+                        self.colour,
+                    );
+                }
+            }
+        }
+
+        self.head_position.x += letter.advance_width as i32;
+    }
+
+    fn render_char(&mut self, c: char) {
+        match c {
+            '\n' => {
+                self.newline();
+            }
+            ' ' => {
+                self.head_position.x += FONT.letter(' ').advance_width as i32;
+            }
+            letter => self.render_letter(letter),
+        }
+    }
+
+    fn newline(&mut self) {
+        self.head_position.x = self.start_x;
+        self.head_position.y += FONT.line_height();
+    }
+}
+
+impl<'bitmap, 'gba> Write for BitmapTextRender<'bitmap, 'gba> {
+    fn write_str(&mut self, s: &str) -> core::fmt::Result {
+        for c in s.chars() {
+            self.render_char(c);
+        }
+
+        Ok(())
+    }
+}